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Essay / Research Paper Abstract
This is a 10 page paper that provides an overview of chemical toxicity. LC50 bioassays are examined, and their usefulness explored. Bibliography lists 15 sources.
Page Count:
10 pages (~225 words per page)
File: KW60_KFsci029.doc
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Unformatted sample text from the term paper:
use of newly develop and discovered chemicals in untested fashions. To go about such matters unprepared, and to release the results for public consumption, would certainly be disastrous. However, total
avoidance of toxic chemicals is all but impossible in modern society. One must then know exactly what concentrations of potentially hazardous chemicals can be used for what purposes without posing
a significant health risk. For this reason, scientists have developed ways to accurately measure and standardize the relative toxicity of chemicals. One of the most common forms of measurement is
known as the "LC50", or lethal concentration 50%, a measurement which indicates the concentration of a chemical, usually measured in parts per million (PPM) which causes mortality in 50% of
an exposed population (Canadian Centre for Occupational Health and Safety, 2012). This paper will document the measurement of LC50 for two common chemicals, ammonium hydroxide and sodium lauryl sulfate. The
value of taking an LC50 measurement is that it allows scientists to accurately predict the toxic potential of a chemical without necessarily suffering harm to humans in the process. By
analyzing different concentrations of a chemical on an experimental population in a laboratory setting, one can discern truths about the toxicity of certain chemicals that have not otherwise come to
light through tragic means such as accident poisoning. Moreover, by allowing scientists to hierarchically rank chemicals in regards to potential toxicity, this allows manufacturers to make the wisest decisions in
developing products with the least negative health implications (Canadian Centre for Occupational Health and Safety, 2012). This is important because, if left unchecked, the chemicals used in many consumer products
can have catastrophic effects upon humans. For instance, pesticides, fungicides, and herbicides, commonly used in gardening and agriculture, often use chemicals that are known to be corrosive irritants to humans,
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